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 Title: |
US4173795:
Racquetball or squash safety mask
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Lundin, Alyce; El Cajon, CA 92020
Bravin, Robert V.; El Cajon, CA 92020
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| Assignee: |
None
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| Published / Filed: |
1979-11-13
/ 1978-07-27
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| Application Number: |
US1978000928374
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| IPC Code: |
Advanced:
A63B 71/10;
IPC-7:
A42B 1/08;
A63B 71/10;
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| ECLA Code: |
A63B71/10; K63B69/02; K63B71/10F;
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| U.S. Class: |
Current:
002/425;
002/009;
002/909;
D29/111;
Original:
002/425;
002/009;
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| Field of Search: |
002/009,424,425,410
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| Priority Number: |
| 1978-07-27 |
US1978000928374 |
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| Abstract: |
A racquetball or squash safety mask having a primary framework assembly, a secondary framework assembly, a grid network covering the secondary framework assembly, and a head strap assembly. The primary framework assembly has a top framework member, a bottom framework member, and a pair of side framework members that function to form a base for the secondary framework assembly and also to support the safety mask upon the wearer's face. The secondary framework assembly is attached to the primary framework assembly and it forms a convex frame having a central vertical strut member and a pair of intermediate strut members all of which extend between the top and bottom framework members. A pair of cross members link the central strut member to the intermediate strut members and the intermediate strut members in turn to the side framework members. The primary framework assembly and the secondary framework assembly are made from light weight metallic rod members that are coated with a high impact plastic material. A grid network covers the secondary framework assembly and it comprises a plurality of wire filaments that are coated with a high impact plastic and which criss-cross each other with their ends secured to the primary framework assembly. The filaments of the grid network are laterally spaced apart a distance greater than one inch but less than two inches. The filaments are also diagonally oriented with respect to the front of the mask such that none of the filaments lie in a vertical plane thereby minimizing the amount of impairment of the wearer's vision. A temple guard member extends rearwardly from each of the side framework members.
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| Attorney, Agent or Firm: |
Logan, II, Charles C. ;
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| Primary / Asst. Examiners: |
Rimrodt, Louis;
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| Family: |
None
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First Claim:
Show all 7 claims |
What is claimed is:
1. A racquetball or squash safety mask comprising: a primary framework assembly and a secondary framework assembly;
- said primary framework assembly having a top framework member, a bottom framework member, and a pair of side framework members that function to form a base for the secondary framework assembly and also to support the safety mask upon the wearer's face:
- said secondary framework assembly is attached to said primary framework assembly and it forms a convex frame that extends outwardly from said primary framework assembly and,
- a grid network covering said secondary framework assembly, said grid network comprising a plurality of filaments criss-crossing each other with their ends secured to said primary framework assembly, said filaments of said grid network being laterally spaced apart a distance greater than one inch but less than two inches, said filaments of said grid network being diagonally oriented with respect to the front of said mask such that none of the filaments lie in a vertical plane thereby minimizing the amount of impairment of the wearer's vision.
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| Background / Summary: |
Show background / summary
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| Drawing Descriptions: |
Show drawing descriptions
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| Description: |
Show description
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| Forward References: |
Show 21 U.S. patent(s) that reference this one
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